基于Camera接口的船用导航雷达显示设计

介绍了基于ARM的Camera接口船用导航雷达显示设计。通过FPGA将雷达回波转换成ITU—RBT601／656视频信号，将视频信号送入ARM的Camera接口，存贮在帧缓存存储器，ARM的显示控制器以DMA的方式读取帧缓存数据，与人机界面在显示控制内部混合叠加后直接送显示器显示。该设计实现了雷达的回波和人机界面的同步显示。满足了船用导航雷达系统的显示要求，并在工程上验证了该设计的有效性。

Design of a Navigation Radar Display Based on the Camera Interface

This paper introduces the design of a navigation radar display based on the Camera interface.The radar echo signal is converted to an ITU-R BT601/656 video signal by FPGA.The video signal is then sent to the camera interface of ARM and is stored in the frame buffer memory.The display controller of ARM reads the frame buffer data in the way of DMA,mixes it with the human-machine interface data,and then send the mixed signal to the displayer to show it directly.The design achieves the synchronous display of the radar echo and human-computer interface,meets the requirements of the navigation radar display.The result of electronic engineering shows that the design is efficient.